/*
 * (C) Copyright 2006-2010 Nuxeo SAS (http://nuxeo.com/) and contributors.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public License
 * (LGPL) version 2.1 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl.html
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * Contributors:
 *     bstefanescu
 */
package org.nuxeo.gwt.habyt.templates.client.bindings;

import org.nuxeo.gwt.habyt.templates.client.TemplatePanel;

import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Node;
import com.google.gwt.user.client.ui.DockPanel;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
 * 
 */
public class DockPanelFactory extends ComplexWidgetFactory {

    public DockPanelFactory() {
        super("dock");
    }

    @Override
    protected Widget createWidget(Element element) {
        DockPanel panel = new DockPanel();
        String v = Helper.getAttribute(element, "border");
        if (v != null) {
            panel.setBorderWidth(Integer.parseInt(v));
        }
        v = Helper.getAttribute(element, "valign");
        if (v != null) {
            panel.setVerticalAlignment(LayoutHelper.getVAlign(v));
        }
        v = Helper.getAttribute(element, "align");
        if (v != null) {
            panel.setHorizontalAlignment(LayoutHelper.getHAlign(v));
        }

        Element child = element.getFirstChildElement();
        while (child != null) {
            if (child.getNodeType() == Node.ELEMENT_NODE) {
                if (child.getTagName().equalsIgnoreCase(
                        TemplatePanel.WIDGET_CELL)) {
                    SimplePanel cell = createCell(child);
                    v = Helper.getAttribute(child, "position");
                    if (v != null) {
                        panel.add(cell, LayoutHelper.getDockAlign(v));
                    } else {
                        throw new IllegalArgumentException(
                                "layout attribute is required on dock panel");
                    }
                    v = Helper.getAttribute(child, "align");
                    if (v != null) {
                        panel.setCellHorizontalAlignment(cell,
                                LayoutHelper.getHAlign(v));
                    }
                    v = Helper.getAttribute(child, "valign");
                    if (v != null) {
                        panel.setCellVerticalAlignment(cell,
                                LayoutHelper.getVAlign(v));
                    }
                    v = Helper.getWidthAttribute(child);
                    if (v != null) {
                        panel.setCellWidth(cell, v);
                    }
                    v = Helper.getHeightAttribute(child);
                    if (v != null) {
                        panel.setCellHeight(cell, v);
                    }
                }
            }
            child = child.getNextSiblingElement();
        }

        return panel;
    }

}
